Convertible note and warrant	12 Months Ended
Dec. 31, 2012
Warrants and Rights Note Disclosure [Abstract]
Schedule of Stockholders' Equity Note, Warrants or Rights [Text Block]	Note 11. Convertible note and warrant On May 24, 2012, the Company entered into a securities purchase agreement (the “SPA”) with Hudson Bay Fund Ltd. (the “Investor”). The SPA provided for the purchase of an 18 month promissory note (the “Senior Secured Convertible Note” or the “Note”) convertible into up to 1,166,667 shares of Company Common stock at a conversion price of $3.00 per share and a warrant (the “Hudson Bay Warrant” or the “HB Warrant”) to purchase up to 875,000 shares of Common stock at an exercise price of $3.00 per share for proceeds of $3,500 (the “Hudson Bay Transaction”). The HB Warrant is exercisable at the option of the holder at a $3.00 per share exercise price and the Company can require exercise if the Weighted Average Price of the Company’s Common stock equals or exceeds 250% of the exercise price for no less than twenty (20) Trading Days during any thirty (30) consecutive Trading Day period occurring following the issuance date, as such terms are defined in the HB Warrant. The HB Warrant exercise price is subject to adjustment in the case of combination or subdivision of stock or in the event of the granting of any stock appreciation rights, phantom stock rights or other rights with equity features. The Note allows for payment of Common stock in lieu of cash interest payments due pursuant to the Note. In connection with the Hudson Bay Transaction, MGT issued 75,000 shares of Restricted Common stock to Chardan Capital Markets, LLC (“Chardan”) and certain affiliates of Chardan in consideration of investment banking services rendered. Stockholder approval was obtained for the issuance of 75,000 shares of Restricted Common stock to Chardan. The restricted Common stock was recorded at fair market value of $315 at the date of closing and was issued on August 9, 2012. Financing and issuance costs totaling $688 were incurred in connection with the issuance of the Note and HB Warrants. These costs include legal and placement fees, including the issuance of the 75,000 shares of restricted Common stock. The total costs were allocated based on relative fair values to deferred financing costs in the amount of $588 and HB Warrant issuance costs of $100. Deferred financing costs are amortized through periodic charges to non-operating expense over the 18 month period from the date of issuance to the date the Note is due using the effective interest method. Amortization expense for the year ended December 31, 2012, and 2011, was $125 and $nil, respectively. The debt to equity conversion feature embedded in the Note was evaluated to determine if such conversion feature should be bifurcated from its host instrument and accounted for as a free standing derivative. The Company determined that the conversion feature did not need to be bifurcated. The fair value of the beneficial conversion feature was calculated to be $500 after adjusting the effective conversion price for the fair value of the HB Warrants issued, recognized as an increase of additional paid-in capital and a discount to the convertible note. The discount to the convertible note payable is accreted through periodic charges to other non-operating expense over the 18 month period from the date of issuance to the date the Note is due using the effective interest method. The fair value of the HB Warrant was estimated on the date of issuance, June 1, 2012, using a closed-formula option pricing method for barrier-type options that took into account the terms of the option rights of the holder and also the Company’s mandatory exercise option, which is consistent with using a Monte Carlo option pricing method. The options pricing methods used the following input assumptions: expected stock price volatility 75.0%; warrant term five (5) years; risk-free rate of 0.80%; dividend yield 0.0%. As the trading volume of the Company’s publicly traded shares was approximately 30,000 per day and the issuable shares under the Note and HB warrant were over 2.0 million, and further because these issuable shares had not yet been registered for public sale at the issuance date, the price of the underlying shares was discounted approximately 30% for options pricing purposes. The fair value of the total HB warrants issued, given the terms of the HB Warrant agreement, was determined to be $500. The HB warrant fair value was recognized as an increase of additional paid-in capital and a discount to the convertible note. The discount to the convertible note payable is accreted through periodic charges to other non-operating expense over the 18 month period from the date of issuance to the date the Note is due using the effective interest method. The beneficial conversion feature and the HB warrant discount accretion expense for the year ended December 31, 2012, and 2011, was $199 and $nil, respectively. The estimates discussed above require us to make assumptions based on historical results, observance of trends in our stock price, future expectations and other relevant risk factors. If other assumptions had been used, the HB Warrant valuation as calculated and recorded under the accounting guidance could have been affected. Volatility is a key factor in option pricing models. For purposes of determining expected volatility, the Company used significant judgment to identify a peer group. The historical volatility of the Company’s own Common stock was not deemed pertinent to the estimate, because of the recent change in the Company’s operations and business plan. The risk-free rate for the period coincides with the expected life of the HB Warrants and is based on the U.S. Treasury Department yield curve in effect at time of closing. For the years ending December 31, 2012, and 2011, interest expense on the convertible note was $93 and $nil, respectively. On October 9, 2012, the Company executed two identical exchange agreements (collectively, the “Agreements”) settling the outstanding Note for a cash payment of $3.5 million and 100,000 shares of the Company’s Common stock valued at $415, using the opening price of the Company’s Common stock on October 9, 2012. The net carrying amount of the Note on the date of extinguishment was $2,698 which was comprised of the amount due at maturity of $3,500 less unamortized debt discount of $802 related to the amount allocated to the warrants and the beneficial conversion feature at issuance. The total reacquisition price of $3,915 was allocated first to the repurchased beneficial conversion feature by recording a reduction of additional paid-in capital of $1,341 measured as the intrinsic value of that conversion feature at the extinguishment date with the residual amount of the reacquisition price of $2,574 allocated to the Note. The difference between the reacquisition price allocated to the Note and the net carrying amount of the Note resulted in a gain of $124 which when netted with the write off of unamortized deferred financing costs of $462 and legal cost of $17, at extinguishment resulted in a total loss on extinguishment of $355. Extinguishment of debt, gains and losses, including fees, incurred in connection with the early extinguishment of debt are charged to current earnings as reductions in non-operating expenses.

Convertible note and warrant

12 Months Ended

Dec. 31, 2012

Warrants and Rights Note Disclosure [Abstract]

Schedule of Stockholders' Equity Note, Warrants or Rights [Text Block]

Note 11. Convertible note and warrant

On May 24, 2012, the Company entered into a securities purchase agreement (the “SPA”) with Hudson Bay Fund Ltd. (the “Investor”). The SPA provided for the purchase of an 18 month promissory note (the “Senior Secured Convertible Note” or the “Note”) convertible into up to 1,166,667 shares of Company Common stock at a conversion price of $3.00 per share and a warrant (the “Hudson Bay Warrant” or the “HB Warrant”) to purchase up to 875,000 shares of Common stock at an exercise price of $3.00 per share for proceeds of $3,500 (the “Hudson Bay Transaction”). The HB Warrant is exercisable at the option of the holder at a $3.00 per share exercise price and the Company can require exercise if the Weighted Average Price of the Company’s Common stock equals or exceeds 250% of the exercise price for no less than twenty (20) Trading Days during any thirty (30) consecutive Trading Day period occurring following the issuance date, as such terms are defined in the HB Warrant. The HB Warrant exercise price is subject to adjustment in the case of combination or subdivision of stock or in the event of the granting of any stock appreciation rights, phantom stock rights or other rights with equity features. The Note allows for payment of Common stock in lieu of cash interest payments due pursuant to the Note.

In connection with the Hudson Bay Transaction, MGT issued 75,000 shares of Restricted Common stock to Chardan Capital Markets, LLC (“Chardan”) and certain affiliates of Chardan in consideration of investment banking services rendered. Stockholder approval was obtained for the issuance of 75,000 shares of Restricted Common stock to Chardan. The restricted Common stock was recorded at fair market value of $315 at the date of closing and was issued on August 9, 2012.

Financing and issuance costs totaling $688 were incurred in connection with the issuance of the Note and HB Warrants. These costs include legal and placement fees, including the issuance of the 75,000 shares of restricted Common stock. The total costs were allocated based on relative fair values to deferred financing costs in the amount of $588 and HB Warrant issuance costs of $100. Deferred financing costs are amortized through periodic charges to non-operating expense over the 18 month period from the date of issuance to the date the Note is due using the effective interest method. Amortization expense for the year ended December 31, 2012, and 2011, was $125 and $nil, respectively.

The debt to equity conversion feature embedded in the Note was evaluated to determine if such conversion feature should be bifurcated from its host instrument and accounted for as a free standing derivative. The Company determined that the conversion feature did not need to be bifurcated. The fair value of the beneficial conversion feature was calculated to be $500 after adjusting the effective conversion price for the fair value of the HB Warrants issued, recognized as an increase of additional paid-in capital and a discount to the convertible note. The discount to the convertible note payable is accreted through periodic charges to other non-operating expense over the 18 month period from the date of issuance to the date the Note is due using the effective interest method.

The fair value of the HB Warrant was estimated on the date of issuance, June 1, 2012, using a closed-formula option pricing method for barrier-type options that took into account the terms of the option rights of the holder and also the Company’s mandatory exercise option, which is consistent with using a Monte Carlo option pricing method. The options pricing methods used the following input assumptions: expected stock price volatility 75.0%; warrant term five (5) years; risk-free rate of 0.80%; dividend yield 0.0%. As the trading volume of the Company’s publicly traded shares was approximately 30,000 per day and the issuable shares under the Note and HB warrant were over 2.0 million, and further because these issuable shares had not yet been registered for public sale at the issuance date, the price of the underlying shares was discounted approximately 30% for options pricing purposes. The fair value of the total HB warrants issued, given the terms of the HB Warrant agreement, was determined to be $500. The HB warrant fair value was recognized as an increase of additional paid-in capital and a discount to the convertible note. The discount to the convertible note payable is accreted through periodic charges to other non-operating expense over the 18 month period from the date of issuance to the date the Note is due using the effective interest method.

The beneficial conversion feature and the HB warrant discount accretion expense for the year ended December 31, 2012, and 2011, was $199 and $nil, respectively.

The estimates discussed above require us to make assumptions based on historical results, observance of trends in our stock price, future expectations and other relevant risk factors. If other assumptions had been used, the HB Warrant valuation as calculated and recorded under the accounting guidance could have been affected.

Volatility is a key factor in option pricing models. For purposes of determining expected volatility, the Company used significant judgment to identify a peer group. The historical volatility of the Company’s own Common stock was not deemed pertinent to the estimate, because of the recent change in the Company’s operations and business plan. The risk-free rate for the period coincides with the expected life of the HB Warrants and is based on the U.S. Treasury Department yield curve in effect at time of closing.

For the years ending December 31, 2012, and 2011, interest expense on the convertible note was $93 and $nil, respectively.

On October 9, 2012, the Company executed two identical exchange agreements (collectively, the “Agreements”) settling the outstanding Note for a cash payment of $3.5 million and 100,000 shares of the Company’s Common stock valued at $415, using the opening price of the Company’s Common stock on October 9, 2012. The net carrying amount of the Note on the date of extinguishment was $2,698 which was comprised of the amount due at maturity of $3,500 less unamortized debt discount of $802 related to the amount allocated to the warrants and the beneficial conversion feature at issuance. The total reacquisition price of $3,915 was allocated first to the repurchased beneficial conversion feature by recording a reduction of additional paid-in capital of $1,341 measured as the intrinsic value of that conversion feature at the extinguishment date with the residual amount of the reacquisition price of $2,574 allocated to the Note. The difference between the reacquisition price allocated to the Note and the net carrying amount of the Note resulted in a gain of $124 which when netted with the write off of unamortized deferred financing costs of $462 and legal cost of $17, at extinguishment resulted in a total loss on extinguishment of $355. Extinguishment of debt, gains and losses, including fees, incurred in connection with the early extinguishment of debt are charged to current earnings as reductions in non-operating expenses.